Sentence examples for this is a difficult question from inspiring English sources

This is a difficult question, Hume admitted.

"This is a difficult question," he said.

How to interpret this is a difficult question to answer.

This is a difficult question in principle, but I doubt that it's of much practical significance.

This is a difficult question because I don't want to come across as 'poor me'.

This is a difficult question because it is a huge commitment deciding to become a pilot.

In contrast the more open question 'What reactions were involved in the experiment?' worked less effectively than the more specific 'Balanced equation with relative molecular masses', even though this was a difficult question to respond to on a computer.

This was a difficult question for students.

This was a difficult question for our students.

In the past this was a difficult question to answer because details of chloroplast structure were missing.

Estimating how many new points are required during this resampling procedure is a difficult question in general.